CN106058451A - High gain T-shaped probe feed millimeter wave patch antenna - Google Patents
High gain T-shaped probe feed millimeter wave patch antenna Download PDFInfo
- Publication number
- CN106058451A CN106058451A CN201610552939.8A CN201610552939A CN106058451A CN 106058451 A CN106058451 A CN 106058451A CN 201610552939 A CN201610552939 A CN 201610552939A CN 106058451 A CN106058451 A CN 106058451A
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- China
- Prior art keywords
- medium substrate
- radiation patch
- coplanar waveguide
- shaped probe
- millimeter wave
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
- H01Q5/55—Feeding or matching arrangements for broad-band or multi-band operation for horn or waveguide antennas
Abstract
The invention discloses a high gain T-shaped probe feed millimeter wave patch antenna. The high gain T-shaped probe feed millimeter wave patch antenna comprises a first medium substrate, wherein the first medium substrate is provided with a T-shaped probe, a first radiation patch, a second radiation patch, a first coplanar waveguide transmission wire and a second coplanar waveguide transmission wire, the T-shaped probe comprises a horizontal patch and a vertical metal through hole, the horizontal patch, the first radiation patch and the second radiation patch are arranged on a front surface of the first medium substrate, distances between the horizontal patch and the first radiation patch and the second radiation patch are identical, the first coplanar waveguide transmission wire and the second coplanar waveguide transmission wire are arranged on a back surface of the first medium substrate, and the vertical metal through hole is arranged at a center of the horizontal patch and sequentially penetrates through the horizontal patch, the first medium substrate and the first coplanar waveguide transmission wire. The high gain T-shaped probe feed millimeter wave patch antenna is advantaged in that an excellent radiation directional diagram is realized, a stable and relatively high gain is realized in the whole work frequency band, and simple design, small volume, low cost and good characteristics are realized.
Description
Technical field
The present invention relates to a kind of millimeter wave paster antenna, the millimeter wave patch of the T-shaped probe feed of a kind of high-gain
Chip antenna, belongs to wireless mobile telecommunication technology field.
Background technology
Along with the development of mobile communication technology, when the current mankind entirety has stepped into 4G (the 4th generation)
In generation, 4G communication is that the development further of mechanics of communication lays a solid foundation.Since US Federal Communication Committee (FCC) will
After the frequency range of this 7GHz of 57-64GHz opens as free use frequency range, people are made that substantial amounts of work around 60-GHz frequency range.
5G (the fifth generation) communication grows up on the basis of 4G communication, the most still in conceptual phase, away from
Formally come into operation from it and also need to long period of time.Pass owing to the signal of millimeter wave frequency band is especially suitable for high-speed data
Defeated, therefore the 5G communication that millimeter-wave technology is applied to future is an inevitable choice.But the signal due to 57-64GHz frequency range
Having higher free space transmission decay and the strongest Atmospheric Absorption effect, the antenna therefore designing a high-gain is very
It is necessary.
Millimeter wave paster antenna is by the size limitation of itself, and its gain can not reach the highest level, the most single
The gain of antenna element can only achieve about 6dBi in working frequency range, and the gain being effectively improved antenna element is ten score value
The work that must explore.
According to investigations with understanding, presently disclosed prior art is as follows:
1) 2014, Mingjian Li, Kwai-Man Luk, et al. at " IEEE TRANSACTIONS ON
ANTENNAS AND PROPAGATION " deliver entitled " Low-Cost Wideband Microstrip Antenna Array
For 60-GHz Applications " article in, use L-shaped probe feed structure, paster antenna is fed.Realize
The widest impedance bandwidth and higher gain, and there is the lowest cross polarization and good directional diagram.Whole antenna structure
It build on monolayer pcb board, there is characteristic that is cheap and that be prone to processing.Antenna structure is divided into upper and lower two-layer, and upper strata is radiation patch,
Lower floor is cpw (Coplanar waveguide) feeder line.
2) 2013, Mei Sun, Zhi Ning Chen, Xianming Qing et al. was at " IEEE TRANSACTIONS
ON ANTENNAS AND PROPAGATION " deliver entitled " Gain Enhancement of 60-GHz Antipodal
Tapered Slot Antenna Using Zero-Index Metamaterial " article in, be loaded with a kind of ZIM structure
In ATSA (Antipodal Tapered Slot Antenna) front end, it is achieved that the entire gain at working frequency range internal antenna carries
High 0.2-2.6dBi.
Summary of the invention
The invention aims to solve the defect of above-mentioned prior art, it is provided that the T-shaped probe feedback of a kind of high-gain
The millimeter wave paster antenna of electricity, this antenna achieves good antenna pattern, have in whole working frequency range stable and
Higher gain, has design simple, and volume is little, low cost, the advantage that characteristic is good.
The purpose of the present invention can reach by adopting the following technical scheme that:
The millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain, including first medium substrate, described first medium
Substrate is provided with T-shaped probe, the first radiation patch, the second radiation patch, the first coplanar waveguide transmission line and the second co-planar waveguide
Transmission line, described T-shaped probe is made up of horizontal paster and vertical metal via, described horizontal paster, the first radiation patch and
Two radiation patch are arranged between the front of first medium substrate, and horizontal paster and the first radiation patch, the second radiation patch
Having identical spacing, described first coplanar waveguide transmission line and the second coplanar waveguide transmission line are arranged on first medium substrate
The back side, described vertical metal via is positioned at the center of horizontal paster, and sequentially passes through horizontal paster, first medium substrate and first
Coplanar waveguide transmission line.
As a kind of preferred version, also include two pieces of second medium substrates, two pieces of upper and lower symmetries of second medium substrate, often
Block second medium substrate is arranged on the upper end of first medium substrate, and the front of every piece of second medium substrate is loaded with one or many
Individual ZIM unit, each ZIM unit includes that the first vertical section, the second vertical section and bending segment, the described first vertical section erect with second
The left and right symmetry of straight section, the two ends of described bending segment are connected with the first vertical section, the second vertical section respectively, and this bending segment is by one
" several " shape structure and one fall " several " shape structure composition.
As a kind of preferred version, when described every piece of second medium substrate loads multiple ZIM unit, multiple ZIM unit exist
Arrange successively in horizontal direction.
As a kind of preferred version, the dielectric constant of described every piece of second medium substrate is 5.9.
As a kind of preferred version, described first radiation patch is rectangular configuration, and described second radiation patch is inverted concave
Structure；Described first radiation patch is arranged on the position that the second radiation patch middle concave is entered, and the first radiation patch and the
Between two radiation patch, there is gap.
As a kind of preferred version, described first coplanar waveguide transmission line is rectangular configuration, and described second co-planar waveguide passes
Defeated line is concave structure；Described first coplanar waveguide transmission line is arranged on the position that the second coplanar waveguide transmission line middle concave is entered
On, and between the first coplanar waveguide transmission line and the second coplanar waveguide transmission line, there is gap.
As a kind of preferred version, the dielectric constant of described first medium substrate is 2.2.
As a kind of preferred version, described horizontal paster is rectangle copper sheet, and the center of circle of described vertical metal via is positioned at square
The geometric center of shape copper sheet.
The present invention has a following beneficial effect relative to prior art:
1, the millimeter wave paster antenna of the present invention have employed T-shaped probe (generation be the humorous of high frequency to the first radiation patch
Shake pattern), the second radiation patch (generation is the mode of resonance of low frequency) feeds, with the paster of conventional coaxial probe feed
Antenna is compared, and has wider impedance bandwidth, and from the point of view of the result of Electromagnetic Simulation, impedance bandwidth is about 30%.
2, the millimeter wave paster antenna of the present invention also sets up two pieces of second medium substrates in the upper end of first medium substrate,
The front of every piece of second medium substrate loads one or more ZIM, and (zero-index metamaterial, zero refractive index surpasses material
Material) unit, each ZIM unit includes the first vertical section, the second vertical section and bending segment, and wherein bending segment is tied by " several " shape
Structure and one fall " several " shape structure composition, utilize ZIM unit to be carried in the first radiation patch and the upper end of the second radiation patch, carry
The high gain of antenna, and restrained effectively secondary lobe.
3, the millimeter wave paster antenna of the present invention uses T-shaped probe feed so that antenna body can be directly based upon PCB work
Skill processes, it will be apparent that reduce the cost of antenna, and mobile communcations system has the highest requirement to cost, and low cost is for sky
The large-scale application of line has obvious advantage in mobile communication.
4, the millimeter wave patch-antenna structure of the present invention is simple, volume is little, and low cost, there is good radiation special
Property, cross polarization ratio is the lowest, and directional diagram is stable, all has the lowest cross polarization and well radiation in whole working frequency range
Directional diagram, and the gain of antenna can stablize at more than 6dBi, and highest-gain can reach about 8dBi.
Accompanying drawing explanation
Fig. 1 be the present invention millimeter wave paster antenna in first medium substrate front side structural representation.
Fig. 2 be the present invention millimeter wave paster antenna in first medium substrate back structural representation.
Fig. 3 be the present invention millimeter wave paster antenna in second medium substrate back load a ZIM unit time structure
Schematic diagram.
Fig. 4 be the present invention millimeter wave paster antenna in second medium substrate back load three ZIM unit time structure
Schematic diagram.
Fig. 5 is that the S parameter of the millimeter wave paster antenna Electromagnetic Simulation gained loading ZIM unit with being not loaded with ZIM unit is bent
Line comparison diagram.
Fig. 6 is that the gain of the millimeter wave paster antenna Electromagnetic Simulation gained loading ZIM unit with being not loaded with ZIM unit is with frequency
The curve comparison diagram of rate change.
Wherein, 1-first medium substrate, 2-the first radiation patch, 3-the second radiation patch, 4-the first coplanar wave guide transmission
Line, 5-the second coplanar waveguide transmission line, the horizontal paster of 6-, 7-vertical metal via, 8-second medium substrate, 9-ZIM unit.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
Embodiment 1:
As depicted in figs. 1 and 2, the millimeter wave paster antenna of the present embodiment includes first medium substrate 1, described first medium
It is coplanar that substrate 1 is provided with T-shaped probe, first radiation patch the 2, second radiation patch the 3, first coplanar waveguide transmission line 4 and second
Waveguide transmission line 5.
The millimeter wave paster antenna of the present embodiment have employed T-shaped probe and enters first radiation patch the 2, second radiation patch 3
Row feed, creates two modes of resonance, and wherein what the first radiation patch 2 produced is the mode of resonance of high frequency, the second radiation patch
What sheet 3 produced is the mode of resonance of low frequency, it is ensured that antenna has wider impedance bandwidth；Described T-shaped probe is by horizontal paster 6
Forming with vertical metal via 7, described horizontal paster the 6, first radiation patch 2 and the second radiation patch 3 are arranged on first medium
There is identical spacing (in Fig. 1 between the front of substrate 1, and horizontal paster 6 and first radiation patch the 2, second radiation patch 3
It is the gap formed between horizontal paster 6 and first radiation patch the 2, second radiation patch 3 at dotted line 2L)；Can from Fig. 1
Arriving, described first radiation patch 2 is rectangular configuration, and described second radiation patch 3 is inverted concave structure, described first radiation patch
2 are arranged on the position that the second radiation patch 3 middle concave is entered, and have between the first radiation patch 2 and the second radiation patch 3
Gap.
The millimeter wave paster antenna of the present embodiment is to be carried out feeding by the co-planar waveguide without ground, using as feeder line
First coplanar waveguide transmission line 4 and the second coplanar waveguide transmission line 5 are arranged on the back side of first medium substrate 1, permissible from Fig. 2
Seeing, described first coplanar waveguide transmission line 4 is rectangular configuration, and described second coplanar waveguide transmission line 5 is concave structure, described
First coplanar waveguide transmission line 4 is arranged on the position that the second coplanar waveguide transmission line 5 middle concave is entered, and the first co-planar waveguide
Between transmission line 4 and the second coplanar waveguide transmission line 5, there is gap, during making, one piece of paster is covered at first medium substrate 1
The back side, then a U-shaped gap is dug out in the top edge center, the back side at first medium substrate 1, forms the first co-planar waveguide
Transmission line 4 and the second coplanar waveguide transmission line 5；Described vertical metal via 7 is plating, and it is positioned at the center of horizontal paster 6,
And sequentially pass through horizontal paster 6, first medium substrate 1 and the first coplanar waveguide transmission line 4.
Embodiment 2:
As shown in Figure 1 to 4, the millimeter wave paster antenna of the present embodiment also includes two pieces of second medium substrates 8, two piece
The upper and lower symmetry of second medium substrate 8, every block of second medium base 8 plate is arranged on the upper end of first medium substrate 1, and every piece second Jie
The front of matter substrate 8 is loaded with one or more ZIM unit 9, and second medium substrate 8 loads a ZIM unit 9 individually below
Illustrate with three ZIM unit 9:
1) when the front of every piece of second medium substrate 8 loads a ZIM unit 9, as it is shown on figure 3, ZIM unit 9 includes the
One vertical section, the second vertical section and bending segment, the described first vertical section and the second vertical left and right symmetry of section, described bending segment
Two ends are connected with the first vertical section, the second vertical section respectively, and bending segment is fallen " several " shape structure by " several " shape structure and one
Composition.
2) when the front of every piece of second medium substrate 8 loads three ZIM unit 9, as shown in Figure 4, each ZIM unit 9
Structure as previously discussed, arrange the most successively by three ZIM unit 9.
The ZIM unit 9 of two pieces of second medium substrates 8 loads two dotted line (1L, 2L) places in FIG, due to ZIM unit
Can effectively suppress the secondary lobe in antenna radiation pattern E face and improve main lobe gain, therefore substantially carrying in the gain of working frequency range internal antenna
Height, in 57-64GHz frequency range, gain improves 0.5-1.5dBi.
In above-described embodiment 1 and 2, first radiation patch the 2, second radiation patch the 3, first coplanar waveguide transmission line 4, second
Coplanar waveguide transmission line 5, horizontal paster 6 and ZIM unit 9 all use metal material to constitute, can be such as aluminum, ferrum, stannum, copper,
Silver, gold and any one of platinum, can be maybe any one alloy of aluminum, ferrum, stannum, copper, silver, gold and platinum.
Embodiment 3:
In the millimeter wave paster antenna of the present embodiment, the dielectric constant of first medium substrate 1 is 2.2, two pieces of second mediums
The dielectric constant of substrate 2 is 5.9, and whole millimeter wave paster antenna utilizes T-shaped probe to large radiation paster (the second radiation patch
3), little radiation patch (the first radiation patch 2) feed, make antenna achieve wider impedance bandwidth, T-shaped probe is by level
Paster 6 and vertical metal via 7 form, and the most horizontal paster 6 is rectangle copper sheet, and the center of circle of described vertical metal via 7 is positioned at
The geometric center of rectangle copper sheet, is printed on first medium substrate by horizontal paster the 6, first radiation patch 2 and the second radiation patch 3
The front of 1；Whole millimeter wave paster antenna is fed by co-planar waveguide, is total to by the first coplanar waveguide transmission line 4 and second
Coplanar waveguide transmission line 5 is printed on the back side of first medium substrate 1, and vertical metal via 7 sequentially passes through horizontal paster 6, first and is situated between
Matter substrate 1 and the first coplanar waveguide transmission line 4；The front of every piece of second medium substrate 8 is loaded with three ZIM unit 9, loads
The structure of ZIM unit, it is achieved that the overall lifting of the antenna gain in whole working frequency range, and restrained effectively side
Lobe；As shown in Figure 5 and Figure 6, it can be seen that load the millimeter wave paster antenna of ZIM unit and the millimeter wave being not loaded with ZIM unit
Paster antenna is compared, and has good radiation characteristic and the widest impedance bandwidth (about 30%), owing to ZIM unit can have
The effect suppression secondary lobe in antenna radiation pattern E face also improves main lobe gain, therefore significantly improves in the gain of working frequency range internal antenna,
In 57-64GHz frequency range, gain improves 0.5-1.5dBi.
In sum, the millimeter wave paster antenna of the present invention uses T-shaped probe to feed radiation patch, it is ensured that sky
Line has wider impedance bandwidth, and also can load a kind of novel ZIM cellular construction on radiation patch, effectively
Improve the gain of antenna, all there is in whole working frequency range the lowest cross polarization and good antenna pattern, and
The gain of antenna can be stablized at more than 6dBi, and highest-gain can reach about 8dBi.
The above, patent preferred embodiment the most of the present invention, but the protection domain of patent of the present invention is not limited to
This, any those familiar with the art is in the scope disclosed in patent of the present invention, according to the skill of patent of the present invention
Art scheme and inventive concept equivalent or change in addition thereof, broadly fall into the protection domain of patent of the present invention.
Claims (8)
1. a millimeter wave paster antenna for the T-shaped probe feed of high-gain, including first medium substrate, it is characterised in that: institute
State first medium substrate and be provided with T-shaped probe, the first radiation patch, the second radiation patch, the first coplanar waveguide transmission line and
Two coplanar waveguide transmission lines, described T-shaped probe is made up of horizontal paster and vertical metal via, described horizontal paster, the first spoke
Penetrate paster and the second radiation patch is arranged on the front of first medium substrate, and horizontal paster and the first radiation patch, the second spoke
Penetrating and have identical spacing between paster, described first coplanar waveguide transmission line and the second coplanar waveguide transmission line are arranged on first
The back side of medium substrate, described vertical metal via is positioned at the center of horizontal paster, and sequentially passes through horizontal paster, first medium
Substrate and the first coplanar waveguide transmission line.
The millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain the most according to claim 1, it is characterised in that:
Also including two pieces of second medium substrates, two pieces of upper and lower symmetries of second medium substrate, every piece of second medium substrate is arranged on first Jie
The upper end of matter substrate, and the front of every piece of second medium substrate is loaded with one or more ZIM unit, each ZIM unit includes
First vertical section, the second vertical section and bending segment, the described first vertical section and the second vertical left and right symmetry of section, described bending segment
Two ends be connected with the first vertical section, the second vertical section respectively, this bending segment is fallen " several " shape by " several " shape structure and one
Structure forms.
The millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain the most according to claim 2, it is characterised in that:
When described every piece of second medium substrate loads multiple ZIM unit, multiple ZIM unit are arranged the most successively.
4., according to the millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain described in Claims 2 or 3, its feature exists
In: the dielectric constant of described every piece of second medium substrate is 5.9.
5., according to the millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain described in any one of claim 1-3, it is special
Levying and be: described first radiation patch is rectangular configuration, described second radiation patch is inverted concave structure；Described first radiation patch
Sheet is arranged on the position that the second radiation patch middle concave is entered, and has seam between the first radiation patch and the second radiation patch
Gap.
6., according to the millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain described in any one of claim 1-3, it is special
Levying and be: described first coplanar waveguide transmission line is rectangular configuration, described second coplanar waveguide transmission line is concave structure；Described
First coplanar waveguide transmission line is arranged on the position that the second coplanar waveguide transmission line middle concave is entered, and the first co-planar waveguide passes
Between defeated line and the second coplanar waveguide transmission line, there is gap.
7., according to the millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain described in any one of claim 1-3, it is special
Levy and be: the dielectric constant of described first medium substrate is 2.2.
8., according to the millimeter wave paster antenna of the T-shaped probe feed of a kind of high-gain described in any one of claim 1-3, it is special
Levying and be: described horizontal paster is rectangle copper sheet, the center of circle of described vertical metal via is positioned at the geometric center of rectangle copper sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552939.8A CN106058451B (en) | 2016-07-12 | 2016-07-12 | A kind of millimeter wave paster antenna of the T shape probe feed of high-gain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552939.8A CN106058451B (en) | 2016-07-12 | 2016-07-12 | A kind of millimeter wave paster antenna of the T shape probe feed of high-gain |
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| Publication Number | Publication Date |
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| CN106058451A true CN106058451A (en) | 2016-10-26 |
| CN106058451B CN106058451B (en) | 2019-05-14 |
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| CN201610552939.8A Active CN106058451B (en) | 2016-07-12 | 2016-07-12 | A kind of millimeter wave paster antenna of the T shape probe feed of high-gain |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
| CN110707425A (en) * | 2019-10-28 | 2020-01-17 | 华南理工大学 | Large-frequency-ratio cavity-backed antenna based on SIW |
| CN116191048A (en) * | 2023-04-27 | 2023-05-30 | 北京智芯微电子科技有限公司 | Electromagnetic environment measuring antenna |
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| US4197545A (en) * | 1978-01-16 | 1980-04-08 | Sanders Associates, Inc. | Stripline slot antenna |
| CN2724223Y (en) * | 2004-08-23 | 2005-09-07 | 摩比天线技术（深圳）有限公司 | Wave guide printed antenna |
| CN205846228U (en) * | 2016-07-12 | 2016-12-28 | 华南理工大学 | A kind of millimeter wave paster antenna of the T-shaped probe feed of high-gain |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4197545A (en) * | 1978-01-16 | 1980-04-08 | Sanders Associates, Inc. | Stripline slot antenna |
| CN2724223Y (en) * | 2004-08-23 | 2005-09-07 | 摩比天线技术（深圳）有限公司 | Wave guide printed antenna |
| CN205846228U (en) * | 2016-07-12 | 2016-12-28 | 华南理工大学 | A kind of millimeter wave paster antenna of the T-shaped probe feed of high-gain |
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| F.S.PAIXAO ET-AL.: "《Patch Antenna with T-Shaped Probe Feed for Broadband Applications》", 《MICROWAVE AND OPTOELECTRONICS CONFERENCE (IMOC), 2009 SBMO/IEEE MTT-S INTERNATIONAL》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493593A (en) * | 2018-05-21 | 2018-09-04 | 南京信息工程大学 | A kind of polarization reconfigurable antenna array based on feeding network |
| CN108493593B (en) * | 2018-05-21 | 2023-10-13 | 南京信息工程大学 | Polarization reconfigurable antenna array based on feed network |
| CN110707425A (en) * | 2019-10-28 | 2020-01-17 | 华南理工大学 | Large-frequency-ratio cavity-backed antenna based on SIW |
| CN110707425B (en) * | 2019-10-28 | 2024-04-09 | 华南理工大学 | SIW-based large-frequency-ratio back cavity antenna |
| CN116191048A (en) * | 2023-04-27 | 2023-05-30 | 北京智芯微电子科技有限公司 | Electromagnetic environment measuring antenna |
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| Publication number | Publication date |
|---|---|
| CN106058451B (en) | 2019-05-14 |
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